was a former Boer soldier and big-game hunter who had spied for Imperial Germany in WWI, and was the ringleader of the Duquesne Spy Ring in the US during WWII .
Kauder was the leader of the Max and Moritz Networks supplying rumours and convincing made-up reports on Soviet Union and Mediterranean region from Sofia
Carmelo Borg Pisani was a Maltese-born artist and Italian Fascist who, on being discovered during an espionage mission in Malta, was found guilty by a British war tribunal and executed for treason.
Siviero was an Italian secret agent, art historian and intellectual, most notable for his important work in recovering artworks stolen from Italy during the Second World War as part of the 'Nazi plunder'.
Lella claimed to have led Jews fleeing Italy through the Alps into Switzerland to freedom and later, as a Nazi, to have passed information to the Italian resistance.[citation needed] Critics note that none of his claims have been corroborated,[9] either by those he claimed to rescue or by the Italian resistance[10] and that such claims might have been self-serving fabrications to avoid recriminations after World War II for enlisting as a Nazi.[11]
Was a former WWI British naval aviation officer who was paid by the Japanese to Spy on American military aviation developments in California and Hawaii before Pearl Harbor.
Known as the Doll Woman, Dickinson used her New York City Doll shop as base of operations to spy on the US Navy and send stenographic messages to her Japanese handlers in South America. She was caught by the FBI in 1944 and was sentenced to ten years in prison.
Heenan was a British Indian Army Captain who used radio equipment to transmit intelligence to Japanese forces during the Battle of Malay. His espionage discovered by his fellow officers and was summarily executed before the British defeat in the Battle of Singapore
A Spanish double agent loyal to Great Britain, García played a key role deceiving Nazi Germany during Operation Fortitude, delaying reinforcements from Nazi Germany to Normandy.
Glauber was a Jewish Austrian who escaped to Britain. He joined MI6. On his second mission, part of which involved gathering information on Nazi Nuclear developments, he was betrayed. Glauber was severely brutalized by the Nazis for being both a Jew and a British spy, refused to reveal any information. He was murdered in Mauthausen Concentration Camp.
Alexander was an American spy who gathered intel from German troops occupying France. She remained in Clermont-Ferrand for nearly two years, and reported her findings back to the US military.
Morris Berg was an American catcher and coach in Major League Baseball, who later served as a spy for the Office of Strategic Services during World War II.
Mashbir headed the top secret intelligence gathering organization Allied Translator and Interpreter Section during WWII. In 1942, Colonel Mashbir working with Ellis M. Zacharias created the first draft for the implementing directives for the creation of the CIA. Commander Zacharias later became the Deputy Chief of Naval Intelligence.
^Sweeney, Michael S., Secrets of victory: the Office of Censorship and the American press and Radio in World War II, University of North Carolina Press, ISBN0-8078-2598-0 (2001), pp. 157-162